Question / Help Framerate is inversely proportionate to performance

stebbinsd

Member
Ok, through a series of posts on other message boards, I finally managed to figure out how to record video game footage.

But there's just one problem: The higher I push the framerate, the choppier the playback footage is!

For example, my game runs at 60fps. Even while I'm recording, it's still at 60fps. So I highly doubt it's my computer, because if it were, how come the game still runs normally?

But if I tell OBS to record at 60fps, then just the slightest movement from my character causes the recording to freeze up. When my character has finished moving, then it picks back up.

But here's the weird part: I actually get BETTER performance if I LOWER the framerate at which I record, I actually get less choppiness. When recording at 30fps, the footage will get choppy if my character makes any sudden movements (such as turning around fast to face an enemy that's behind him). But if he's just walking down a corridor or fighting a single enemy one-on-one, the footage of that fight works just fine.

But if I reduce it even further, down to 20fps, then the footage is kind of choppy. But at least it stays consistent. If I'm at 20fps, it doesn't go down to about 1 or 2fps, now matter what kind of sudden, jerkish movements I make in game.

How do I get it to record ... smoothly ... at 60fps?
 

moriz1

Member
maybe your hard drive speed isn't fast enough.

scenes with movement require more data to encode, which might explain why a mostly static scene records fine, while anything with movement will cause your recording to freeze, because your hard drive can't keep up anymore.

turning up the recording framerate also means more data per second, which also needs faster hard drives.
 

stebbinsd

Member
I use a sata cable. It's 6.0Gb/s. Is that fast enough?

To be fair, I'm currently using my secondary hard drive to save my encoding files. It's the "E" drive, not the C drive, and the reason I do that is because, if I need to do a clean install, I can simply unplug the sata port from the back of my secondary hard drive; no need to "back up" the files.

I do notice that the E drive is slightly slower in pulling up word documents and the like. Do most computers have a C drive that's faster than the E drive?
 

Sodak

Member
I have the same problem if i record with obs on win 10 with nvenc on 60fps my fps goes down to 30-50fps and its not smooth. its a OBS sided problem i think .

Which OS ure using?
 

VanDuits

Member
If C: is not a SSD, then you are right to use your secondary drive. if the speeds are good enough of course.
What are your settings in OBS?
 
as i said no log no cookies
what are you even talkng about? even if he records with 50k bitrae its barely 6,25 MB/s. any usb2.0 hdd or old pata hdd should make it. only thing that may affect it is disabled write cache in drive properities in device manager and thats quite unlikely also
 

stebbinsd

Member
as i said no log no cookies
what are you even talkng about? even if he records with 50k bitrae its barely 6,25 MB/s. any usb2.0 hdd or old pata hdd should make it. only thing that may affect it is disabled write cache in drive properities in device manager and thats quite unlikely also
Uuuuh ... hablar en ingles, por favor.

Seriously, would you mind just simply telling me what I need to do?
 

MeTheRebel

New Member
No one can assist you if you don't provide any information.
Just upload an OBS log so people can help you.
(Help -> Log Files)
 
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